On whose wish does the mind go on its errand? On whose command does the first breath go forth? On whose wish do we speak this speech? What god directs the eye, or the ear?

It is Ear of the ear, Mind of the mind, Speech of the speech, Breath of the breath, and Eye of the eye; and so the wise give up wrong notions when they depart from the world and find immortality.(Kena Upanishad)